Milk yield and composition of crossbred Sahelian × Anglo-Nubian goats in the semi-intensive system in Mali during the preweaning period

Abstract

The aim of this study was to evaluate milk yield and its composition during the preweaning period for Sahelian goats (SG) and Anglo-Nubian (AN) crossbred depending on some factors. The experiments were conducted from January to December 2008 for 44 suckled and hand-milked does, randomized, and divided into two equal groups: SG (n = 22) and F(1) Anglo-Nubian × Sahelian goats (1/2AN; n = 22). The does and their offsprings were kept in a pen where they stayed indoors for 45 days before they were allowed outdoors when the weather was suitable. Each category received supplemental feeds depending on the season (rainy season, dry cold season, and dry hot season). The average daily milk yield was recorded weekly from parturition to 100 days of age. Individual milk samples were taken for chemical analysis in connection with the yield measurements twice per month from the fourth week of lactation throughout the different seasons (rainy, cold dry, and hot dry). The daily milk yield differed between breed types (P = 0.001) during the preweaning, while the effect of kids' sex on daily milk production was not significant. Litter size affected milk yield up to day 60 (P = 0.032) where does with twins producing more milk than those with single kid. However, at day 100, both groups had similar (P = 0.001) milk production. Total milk yield at weaning increased by 103 % in 1/2AN over SG. The highest concentration of total solids of milk was (12.76 %) recorded in the hot dry season. The results of this study indicate that crossbreeding native Sahelian goats with high potential Anglo-Nubian buck improved milk production and its composition.

Elevage caprin en Afrique de l’Ouest : une synthèse

“…Cette production laitière relative assez élevée chez les chèvres du Sahel justifie sans doute que dans les troupeaux ruraux au Mali, la traite soit plus fréquente chez les caprins que chez les ovins (respectivement 85 et 38 % des troupeaux; Waelti et al, 2003). La production de lait augmente avec la taille de la portée (Sangaré et Pandey, 2000 ;Zahraddeen et al, 2009 ;Sanogo et al, 2013) et la parité (Sangaré et Pandey 2000 ;Zahraddeen et al, 2009 ;Traoré et al, 2012). Pour certains auteurs, les mises bas de saison sèche froide conduisent à une production laitière élevée (Zahraddeen et al, 2009 ;Traoré et al, 2012) alors que pour Cissé et al (2002) c'est pendant l'hivernage qu'elle est plus abondante.…”

Goat Type Selection and Molecular Markers; a Solution for Milk Production in Recently Desertified Zones

“…The offspring produced 1.37 kg milk per day, while the Sahelian goats only produce 0.74 kg/day, half of the hybrid milk production. Besides, this hybrid crossbred goat increased their milk quality from 4.7% to 5.8% for total lipids concentration and from 3.9% to 4.1% for total protein contents [64]. On the contrary, in Iran, the crossbreeding between local goat Mamasani and Saanen breed had a progeny able to produce 1.31 kg of milk per day, the double volume produced by the local Mamasani goat (0.65 kg per day) (Table 1).…”

Goat type: The key factor to produce goat milk with economic profitable purpose in arid and desert zones

“…The crossbreeding between dairy and creole goats is also another good alternative (Kume et al, 2012;Sanogo et al, 2012). Creole goats have adaptive traits for arid and desert zones, like walking for long time to cover broad natural forage area.…”